I don't use any standard setting "as is". I always modify them to suit me. Often I'll buy adventures and supplements just so for ideas in my own homebrew setting.

I homebrew all my settings, except for a brief foray into a version of Oathbound (Bastion Press) in 2002 or so. Even then, I changed far too many details for it to be a real Oathbound setting.

Each setting is unique, but they all kind of fit into a single campaign world of mine called Aedorea. None of them use the same set of maps, so each campaign actually exists in a different geographical location. I've never attempted to draw a "global map of Aedorea" and I think it would kind of ruin some of it if I did.

In fact, Aedorea might actually be two or more "planets", at least one of which was actually called Jadis.

All of the Aedorea campaigns feature a few commonalities:
   
Airships (nearly every campaign I've run since 1999 has featured the party getting their own airship at some point).
Time Travel (handled in various ways)
Moons that can be travelled to (by airship or other means)
Fairly standard D&D Planar cosmology. (The proto campaign that started Aedorea was actually a Planescape campaign)
The Plane of Mirrors (usually used for travel)
The Plane of Dreams
Dimensional Prisons and Pocket-Planes
Living Animal and Vermin demi-deities.
Goblin tribes described as animal totems. ("the wolf tribe", "the Kookaburra clan")

..aaand there's probably a few others.

But the main overriding important point I use for every single one of my D&D campaigns is that it works more or less as a person might expect by reading any given D&D rulebook.

Reading up on Greyhawk history it became clear to me:

Don´t play in someone elses Campaign. Don´t stand awestruck before the circle of (Gary´s) eight.

Become your own Mordekainen!

I remember being amazed when I found out how many people used the standard settings. I also remember being angry when an AD&D adventure I bought was too-tightly tied to the canonical setting. I stopped buying adventures after that. My Traveller campaigns were also set in a homebrew setting. I never used the Imperium.

-clash

I modify a lot, but I haven't run in a completely homebrew setting for quite some time. The last few years have been filled with some very interesting campaign worlds, and I definitely want to try some out before I start yet another home built world/universe.

My present campaign is the first D&D campaign I've run without an official setting.  I've done some a little supers and some modern era stuff without the aid of a canned milieu, but this is my time running the D&D without a net.  I'm finding it to be very much to my liking.

I love homebrewing: I brewed an English extra pale ale Saturday and its happily fermenting away in basement right now. I have an IPA conditioning in the keg that I can't wait to try.

Wait... you are talking about rpgs, aren't you...

I've always had my own fantasy setting.  It grew accidentilly from it's humble beginnings with Dasic D&D and grew throughout my years with T&T, AD&D, D6 fantasy, and Savage Worlds.

I used the Star Frontiers setting, but that was fairly undeveloped, so you can hardly call that a setting.

I play in the Star Wars Universe, although most of the planets visited are my own creation...so I don't knwo what that means?

I have used the WFRP setting for adventures in that system, although it was hardly necessary, as my adventures were pretty generic and in cities and towns of my own creation.

Overall, I guess I just like doing my own thing when it comes to setting.

I almost never use a prebuilt setting.  Warhammer and Traveller being the exceptions I suppose.

Usually I build a setting from the ground up for each new campaign.  But as I'm moving towards self publishing I'll need to focus more in order to build a more detailed setting.

So, now that everyone said whether they homebrew or not, I'd like to ask how many liters/gallons do you provide? Is your setting just a bunch of names or could (and do) you fill whole binders with it, with detailed world maps, history etc.?

My MT sector is two binders and a map folio.

The current campaign is itself a very large, messy binder. Right now it's full of maps, sketches and a few simple writeups.

I try not to burden players with any kind of history of stuff they "have to know"; I don't assign homework or anything. But every once in a while I'll surprise them with something like a dungeon or adventure that relates to a historical event.

An example of this would be a foray into a group of tmbs related to the creation myth of one of the deities of the setting. As they explored the tombs, they kept uncovering bits and pieces of the story behind the story, and they even get embroiled in the machinations of a ghost and wraith who dated from the time when the events took place.

I only flesh it out if I'm going to realease it commercially. My true homebrew campaigns are only as detailed as necessary, sometimes just a couple of sheets of notes and a map.

-clash

Quote from: SettembriniMy MT sector is two binders and a map folio.

Dude, I'm totally jealous.  How long have you been working on that?

In-depth map(s), about a 32-page primer (for the players), and hundreds of pages of oft-disjointed notes (for me).